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Problem 2 Springy Pulley
m
3m
www
H
Consider the arrangment shown that is at rest. Each pulley has
mass m and radius R. (a) If we release the system, with what
speed does the 3m mass hit the spring (which was a distance h
below its intial position)? (b) If the spring undergoes a maximum
compression of h, what is the spring constant k? (c) Does the
maximum compression of the spring depend on whether or not the
pulleys had mass?

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